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›› 2013, Vol. 33 ›› Issue (2): 77-80.doi: 10.3969/j.issn.0253-2417.2013.02.013

• 研究报告 • Previous Articles     Next Articles

Wetting Property of Modified Nanocrystalline Cellulose on Waterborne Polyurethane

SHE Ying, ZHANG Hao, SONG Shu-ping, CHEN He-yu, PU Jun-wen   

  1. College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China
  • Received:2012-03-19 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

Abstract: The wetting property of surface modified nanocrystalline cellulose (NCC) by silane coupling agent (SCA-1, SCA-2, and SCA-3) on waterborne polyurethane was improved in this study. The contact angle was selected to estimate the wetting effects of modified NCC on waterborne polyurethane. The results indicated that all the different lipophilic groups of SCA-1, SCA-2, and SCA-3 could lead to the improvements of wetting property between NCC and waterborne polyurethane. The wetting property of NCC modified by SCA-3 increased significantly by 37.7% due to the steric hinerance of epoxide groups. This was higher than that of SCA-1 and SCA-2.

Key words: nanocrystalline cellulose, modification, wetting property, polyurethane, contact angle

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